Cheffort Oxygen Gas Meter, Digital Portable Automotive O2 Gas Tester, Digital LCD Display Alarm O2 Concentration Measurement Tester Device for Car, Climbing, Tunnel, Laboratory and Industry

This is a precision oxygen concentration instrument, it use electro-chemical type gas sensor to measure the gas, it can quickly response to oxygen, can be manual setup the alarm level with light and sound. Applicable at home, workshop, petroleum refining, petrochemical plant, oxygen content detection in trains and automobiles and industries and plants using oxygen etc.Specification:● Detection Gas Type: Oxygen● Measuring Range: 0-25%● Resolution: 0.1%● Basic Error: < 1.5% full scale● Temperature Range: 14～122℉● Respond time: <15s● Recovery time: <15s● The Principle of Sensor: Electrochemical principle, life for two years● LCD Panel: Large screen liquid crystal display● Alarm Mode: Acoustic and light double alarm can be set the alarm value and alarm sound separately● Battery: 3.7V rechargeable Lithium battery● Operation Time: >90h(continue working hour)● Working Temperature: 14～122℉● Working Humidity: <95%RHPackage List:1 x Oxygen Gas Meter1 x USB Cable1 x Adapter1 x Battery1 x Carry Case1 x User Manual